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15 Cards in this Set
- Front
- Back
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What is pseudodiarrhea?
Who is more at risk for fecal incontinence? (hershey squirts) Time frame between acute/chronic diarrhea? |
increased frequency, consistency is the same
elderly, female, liquid stools acute < 3 weeks < chronic |
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Lactose intolerance is an example of ____________ diarrhea.
Other exogenous causes of osmotic diarrhea? |
malabsorption (osmotic)
Laxatives, Mg++ antacids, foods with sorbitol (gum, mints), Olestra |
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Causes of secretory diarrhea?
Pathogenic causes of diarrhea? |
bacterial toxins, phenolphthalein laxatives, meds (AceI, H2, diuretics), coffee, EtOH, some bacterial toxins
Salmonella, Shigella, EIEC, E. histolytica, viruses |
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How are pathogens causing diarrhea usually transmitted?
Infectious causes should have a high IOS in __________________. General tx of acute diarrhea? |
fecal-oral, person-person
acute watery diarrhea Fluids, Abx |
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Why should you not give anti-diarrheal agents to pts with fever, or bloody diarrhea?
Etiology of tropical sprue? |
toxin stays in body longer
persistent contamination of entire SI by toxigenic strains of bacteria |
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Tropical sprue can lead to what deficiencies?
Tx of tropical sprue? |
B12, folate
remove from tropics, tetracycline, folate, B12 |
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Main cause of intraluminal maldigestion? Which pts?
CF patients often have _____________. |
cirrhosis pts, bile duct obstruction
pancreatic insufficiency |
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Pt presents with significant weight loss, arthralgia, diarrhea, fever and abdominal pain.
example of what? Dx? |
Whipple's disease
mucosal malabsorption PAS+ bodies in macrophages |
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2 yr old pt. presents with anemia, abd pain, diarrhea, failure to thrive after starting on cereal.
Pt presents with bloody diarrhea, cramping, fever, pyodermas, erythema nodosum: |
Celiac sprue
ulcerative colitis |
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Etiology of UC?
Other complications? |
Inflammatory dz starting in rectum, extends through colon, superficial mucosal hemorrhages and ulcerations, can have pseudocysts
iritis, sclerosing cholangitis, risk of colon ca, toxic megacolon |
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What test is contraindicated for toxic megacolon? Why?
Treatment of mild UC? Tx of severe UC? |
BE - don't need any more distension
steroids, 5-ASA enemas nightly x 3 wks., or oral 5-ASA, prednisone bedrest, IVF, blood transfusions, IV steroids, TPN |
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With severe UC, if no response in 7 days, then what?
Urgent indications for colectomy? |
give cyclosporine IV for 7 days
toxic megacolon, perforation, refractory fulminant colitis, severe hemorrhage |
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Describe Crohn's disease.
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usually affects SI, skip lesions, recurrent attacks of diarrhea, abd pain, fever, 75% in terminal ileum, transmural, granulomas in lesions
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Complications of Crohn's?
Does surgery cure Crohn's? Why? |
obstruction from fibrosis (scars contract), fistula, abscesses, malabsorption, joints, eyes, skin problems
No - skip lesions |
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Crohn's or UC:
affects rectum more DEEP ulcers pseudopolyps involves ileum more |
rectum - UC
DEEP ulcers - Crohn's pseudopolyps - UC ileum - Crohn's |
